Stockholm to Chicago (ARN–ORD) — Airlines, Schedules & Connections

Sweden is part of the US Visa Waiver Program. Swedish passport holders need an approved ESTA (Electronic System for Travel Authorization) before boarding. The ESTA costs USD 21, is valid for 2 years, and allows stays up to 90 days per visit. Apply online at the official CBP ESTA site at least 72 hours before departure. Your passport must be machine-readable and valid for the duration of the stay.

The Arlanda Express train runs non-stop from Stockholm Central Station to ARN in 18 minutes (SEK 280–320 one-way, cheaper booked online). The Pendeltåg (commuter rail) stops at Arlanda South/North stations for SEK 145 total (including a SEK 120 airport supplement); the journey takes 40 minutes.Taxis from central Stockholm cost SEK 600–800 (45–60 min). Uber runs SEK 400–600. The E4 motorway connects the airport to the city; traffic can be heavy southbound during afternoon rush. Driving takes 35–50 minutes in normal conditions.

CTA Blue Line runs 24/7 from O'Hare to downtown Chicago (45 min, $5). Taxis use a flat-rate zone system; downtown is around $40–45 plus tip. Ride-shares are typically $30–50.The Airport Transit System (ATS) connects all terminals and parking. Metra commuter rail does not serve O'Hare directly; transfer downtown via Blue Line.

Continental climate with four distinct seasons. Summers are warm and humid (25–32°C) with afternoon thunderstorms. Winters are cold (−10 to −2°C) with heavy snowfall that regularly delays flights December through March.

Spring and fall are mild but unpredictable. Pack layers. Lake Michigan moderates temperatures near the lakefront, but O'Hare sits inland and runs colder.